D8251A Programmable Communication Interface DIP-28

D8251A Programmable Communication Interface DIP-28

The D8251A is a programmable communication interface (USART) designed to handle both synchronous and asynchronous serial data communication in microprocessor-based systems. It acts as a bridge between parallel data buses and serial communication lines, offering flexible configuration for data format, baud rate, parity, and stop bits. Packaged in a standard DIP-28, the D8251A is widely used with classic microprocessors such as 8080, 8085, and 8086 families. Its built-in transmitter and receiver, along with programmable control registers, make it ideal for reliable serial communication in embedded, industrial, and legacy computing applications.

Features

• Supports both asynchronous and synchronous communication modes.
• Programmable baud rate, character length, parity, and stop bits.
• Full-duplex operation with independent transmitter and receiver.
• Compatible with Intel 8080/8085/8086 microprocessor systems.
• Internal control and status registers for flexible configuration.
• Error detection including parity, overrun, and framing errors.
• Standard DIP-28 package for through-hole mounting.

PINOUT

Specifications

Documents